Parent Lineage
South Twin Cone Peak: 12,329' CO 695' Rise
| Depth | Parent | Elevation | Saddle | Prominence | State |
| 1 | "Peak X" | 12,432' | 10,673' | 1,759' | CO |
| 2 | Bison Peak | 12,435' | 9,994' | 2,441' | CO |
| 3 | 12569 | 12,569' | 12,234' | 335' | CO |
| 4 | Whale Peak | 13,080' | 12,101' | 979' | CO |
| 5 | Geneva Peak | 13,266' | 12,320' | 946' | CO |
| 6 | Argentine Peak | 13,743' | 13,124' | 619' | CO |
| 7 | Edwards, Mount | 13,860' | 13,417' | 443' | CO |
| 8 | Grays Peak | 14,275' | 11,493' | 2,782' | CO |
| 9 | Lincoln, Mount | 14,293' | 10,433' | 3,860' | CO |
| 10 | Massive, Mount | 14,427' | 12,444' | 1,983' | CO |
| 11 | Elbert, Mount | 14,438' | 5,346' | 9,092' | CO |
| 12 | Whitney, Mount | 14,494' | 4,415' | 10,079' | CA |
Green = More Prominent Parent
Immediate Children:
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